I configure the as5400 with two dial peers (1st and 2nd) for provider A and two dial peers (3rd and 4th) for provider B. Both of them offer sip calls.
If 1st dial peer for provider A is not working, I would like the call flow to 2nd dial per to provider A.
If 3rd dial peer for provider B is not working, I would like the call flow to 4th dial per to provider B.
How do I configure it? any sample configuration?